US Bridges

SB Ill 6 over Charter Oak Road

Poor

Peoria County, Illinois · 1 MI N of I-74 · Structure no. 072013900000000

Built
1978
47 years old
Condition
Poor
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
126 ft
3 main spans
Daily traffic
28,400
2023 count
Owner
State
State Highway Agency

About this bridge

SB Ill 6 over Charter Oak Road is a prestressed concrete continuous stringer/multi-beam or girder carrying SB Ill 6 over Charter Oak Road in Peoria County, Illinois. It was built in 1978, so it is 47 years old, older than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 28,400 vehicles a day, roughly 7% of them trucks, projected to reach 13,989 by 2046. The structure is 126 ft (38.4 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSB Ill 6
CrossesCharter Oak Road
Location1 MI N of I-74
RouteState Highway 6
CountyPeoria County
StateIllinois
Coordinates40.7545, -89.67137
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length126 ft (38.4 m)
Longest span63 ft (19.2 m)
Deck width42 ft (12.7 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,400 (2023)
Projected traffic13,989 by 2046
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SB Ill 6 over Charter Oak Road built?

It was built in 1978, making it 47 years old in 2025.

What condition is SB Ill 6 over Charter Oak Road in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does SB Ill 6 over Charter Oak Road carry?

About 28,400 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SB Ill 6 over Charter Oak Road?

The structure is 126 ft (38.4 m) long with a longest span of 63 ft (19.2 m) and a deck 42 ft wide.

Who owns SB Ill 6 over Charter Oak Road?

It is owned by the State Highway Agency.